engine: Fix segfault in flb_config_init error case

Signed-off-by: Alec Holmes <[email protected]>

Author: alecholmes

src/flb_config.c

@@ -345,6 +345,11 @@ struct flb_config *flb_config_init()
     mk_list_init(&config->cmetrics);
     mk_list_init(&config->cf_parsers_list);
 
+    /* Initialize multiline-parser list. We need this here, because from now
+     * on we use flb_config_exit to cleanup the config, which requires
+     * the config->multiline_parsers list to be initialized. */
+    mk_list_init(&config->multiline_parsers);
+
     /* Task map */
     ret = flb_config_task_map_resize(config, FLB_CONFIG_DEFAULT_TASK_MAP_SIZE);
 
@@ -354,11 +359,6 @@ struct flb_config *flb_config_init()
         return NULL;
     }
 
-    /* Initialize multiline-parser list. We need this here, because from now
-     * on we use flb_config_exit to cleanup the config, which requires
-     * the config->multiline_parsers list to be initialized. */
-    mk_list_init(&config->multiline_parsers);
-
     /* Environment */
     config->env = flb_env_create();
     if (config->env == NULL) {

src/flb_lib.c

@@ -803,7 +803,7 @@ int flb_lib_push(flb_ctx_t *ctx, int ffd, const void *data, size_t len)
 /* Emulate some data from the response */
 int flb_lib_response(flb_ctx_t *ctx, int ffd, int status, const void *data, size_t len)
 {
-    int ret;
+    int ret = 0;
     struct flb_output_instance *o_ins;
 
     if (ctx->status == FLB_LIB_NONE || ctx->status == FLB_LIB_ERROR) {